JPH01229597A - Loudspeaker unit - Google Patents

Abstract

PURPOSE: To quickly form a speaker unit by engaging a finger provided at a front edge with the back of the edge of a projecting part in axial direction provided at a front plate. CONSTITUTION: A speaker 6 is attached to the front plate 1 by a pure horizontally forwarding motion in the direction shown by an arrow 9, and the elastic finger 10 is provided at the ends of the speaker 6 facing to each other. The finger 10 first slides along an end surface 5 in diagonal of an arm 3 at the time of insertion, at this time, turns to the inside of the radial direction toward an axis 11, and then restrained to the back of a bending end 4 by shape connection. A seal member 12 between the front flange of the speaker 6 and the front plate 1 compensates an error to hold the speaker 6 to the front plate 1 without play and close it in airtight. Thus, manufacture is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION It is known to fix a loudspeaker to a front plate via a form-locking locking connection.

This measure has the advantage that it is simple in construction, can be rapidly manufactured manually or automatically, is easy to remove again, and does not require screws or other fastening elements. The front frame may be, for example, the front frame of a television set, the front wall of a speaker box or the instrument panel of a motor vehicle.

It is an object of the invention to provide a fastening means which is particularly suitable for small high-temperature loudspeakers, for example piezo high-temperature loudspeakers, which is structurally simple and can be rapidly produced manually or automatically.

This problem arises in a loudspeaker unit with a front plate into which the loudspeaker is to be inserted via a form-locking locking connection, in which the front edge of the loudspeaker has a fin directed toward the rear end when viewed in the axial direction. The fins are arranged so that the fins engage behind the edges of the axial projections on the front plate.

According to the present invention, the fins are oriented obliquely outward toward the rear end with respect to the axis of the speaker.

According to the invention, the projection has an opening in the rim area through which the end of the finger can be removed from the rim.

According to the present invention, the protruding portion stands vertically on the front billet, and is bent at the end toward the axis of the speaker.

According to the present invention, the end face facing the center of the bent end portion extends diagonally outward toward the rear end.

According to the present invention, a flexible seal member is disposed between the front flange of the speaker and the front plate.

According to the invention, the projecting part of the frame is constituted by the walls of the box-shaped attachment of the frame.

According to the invention, the fins are provided with jaws which engage in a form-locking manner in the openings or edges of the projections of the frame.

According to the invention, the fins extend beyond the jaw towards the rear end and here constitute a grip for manually removing the loudspeaker from the frame.

According to the present invention, the front flange of the speaker is provided with a hole into which a centering member engages during assembly.

With the measures of the invention, the loudspeaker can be fixed to the front frame by a purely translational movement, without the need for rotational or tilting movements.

This is particularly advantageous when assembling using automatic equipment. The speaker can also be easily removed from the front plate by removing the end of the resilient fin from the edge using a tool through an opening in the arm.

The invention can be used particularly advantageously for small treble speakers, such as piezo high temperature loudspeakers in the front plate of a television receiver.

Hereinafter, the present invention will be explained in detail with reference to embodiments with reference to the drawings.

FIG. 1 shows a front plate 1 having a sound passage hole 2 and two SLL arms 3. As shown in FIG. The arm extends perpendicularly to the front plate 1 and has a bent end 4. The end face 5 of the end portion 4 extends at least partially obliquely towards the outside.

A loudspeaker 6 with a sound guide 7 and a magnet 8 is mounted on the front plate 1 by a purely translational movement in the direction indicated by the arrow 9. Elastic fins 10 are provided at opposite ends of the loudspeaker 6 . During push-in, the fingers first slide along the oblique end face 5 of the arm 3, at this time radially inwardly moving along the axis 1.
1 and then locks by form-fitting onto the back of the bent end 4 of the arm 3. The sealing element 12 between the front flange of the loudspeaker 6 and the front plate 1 is used to compensate for errors and to hold the loudspeaker 6 in the front panel V-) 1 without play and to close it airtight.

FIG. 2 shows a plan view of FIG. 1.

An A-port 14 is formed at the rear end of the center of the arm 3. In order to remove the loudspeaker 6, the fin can be removed again from the bent end 4 through this opening using a tool by pivoting the end of the fin 10 radially in the direction of the axis 11. In this way, the speaker can be removed from the front plate 1 in a direction different from that shown by the arrow 9. The front flange of the loudspeaker 6 has two holes 15 in opposite openings that widen towards the ends. These holes are for engaging auxiliary tools or automatic devices to precisely center the loudspeaker 6 relative to the front plate 1 during assembly.

In FIG. 6, only the speaker 6 is shown together with the seal member 12.

FIG. 4 shows a perspective view of the sugiichiriki 6. The finger 10 has a jaw 16 extending towards the rear end, ie upwardly in the drawing.

This extension constitutes a grip 1T, and by rotating the finger 10 with this grip, the speaker 6
can be manually removed from the frame 1 as a front plate again. The sealing member 12 is made of foam rubber, and the base has an opening in the range of the sound id γ.

FIG. 5 shows a frame 1 configured for receiving a loudspeaker according to FIG.

The frame 1 has a box-shaped mounting section and its walls 19
constitutes a protrusion with an edge or opening 18. When the speaker 6 is inserted into the box-shaped mounting on the frame 1 in the direction indicated by the arrow 9, the sealing member 12 is supported on the surface of the frame 1, and the sound ID γ and the opening 2 coincide. In the final position the jaws 16 engage the openings 18 of the projection by first pivoting the fins 10 inwards and then locking them positively into the openings 18 with the jaws 16 outwards. do. When you want to remove the speaker 6 from the frame for repair, for example, hold the grip 1T facing the rear of the fins 10 in the 1111 position by hand.
11 and in that way move the jaw 16 towards the wall 1.
Free from 9.

[Brief explanation of the drawing]

Figure 1 is a partially cross-sectional view of the speaker and front plate, Figure 2 is a plan view of the speaker installed, Figure 6 is a side view of the speaker with a seal member, and Figure 4. , FIG. 5 is a diagram showing another configuration of the speaker and frame. DESCRIPTION OF SYMBOLS 1...Front plate or frame, 2...Sound passage port, 3...Arm, 4...End part, 5...End face, 6...Speaker, T...Sound guide, 8 ...Magnet, 9...Arrow, 10...Fin, 11...Axis, 12...Seal member, 14...Opening, 15...
Hole, 16... Jaw, 11... Grip, 18...
Edge or opening, 19... wall.

Claims (1)

[Claims] 1. In a loudspeaker unit with a front plate (1) into which the loudspeaker (6) is to be inserted via a form-locking locking connection, the loudspeaker (
The front edge of the front plate (10) is provided with a fin (10) directed toward the rear end when viewed in the axial direction, and the finger is provided on the edge (10) of the axial projection provided on the front plate (1). 4, 18) A speaker unit adapted to be engaged behind the speaker unit.